@mihanni21 ,
Generally put them in order and assign the hours studies as independant variab;e (x) and the score as dependant variable (y)
x y
4 69
5 64
6 86
9 87
10 86
10 59
Now plot these values in a piece of graph paper and see if a line (y=mx+b) can be fit to this data--you can compare this to a least square best fit line using data manipulation. Then you can use another but of manipulation called a Pearson product to determine the statistical fit of this data to this least square best fit.
Right now the way I see it is you don't have much data and there isn't much of a correlation between x and y---but thats opinion as I haven't calculated the fit (if it expressed in numbers it's opinion--Lazarus Long)
Rap